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Refer to the following series and answer the question (all numbers are single digit numbers only).
(Left) 6 2 1 3 7 6 9 7 4 3 5 2 3 4 3 4 2 3 1 5 7 9 5 8 5 7 5 (Right)
How many such even digits are there each of which is immediately preceded by an even digit and also immediately followed by an odd digit?

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Answer (Detailed Solution Below)

Option 1 : 2
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Detailed Solution

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Given series: (Left) 6 2 1 3 7 6 9 7 4 3 5 2 3 4 3 4 2 3 1 5 7 9 5 8 5 7 5 (Right)

Condition to be checked.

Even Digit - Even Digit - Odd Digit

(Left) 6 2 1 3 7 6 9 7 4 3 5 2 3 4 3 4 2 3 1 5 7 9 5 8 5 7 5 (Right)

Thus, there are two such even digits( 621, 423).

Hence, the correct answer is "Option 1".

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-> The Railway Recruitment Board has released the RPF Constable 2025 Response Sheet on 24th March 2025. As per the official notice, the RPF Constable Answer Key will be available from 24th March 2025 to 29th March 2025. 

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-> RPF Constable 2025 application status was released in January 20, 2025.

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